There is no such thing as pure good or pure evil, least of all in people. In the best of us there are thoughts or deeds that are wicked, and in the worst of us, at least some virtue. An adversary is not one who does loathsome acts for their own sake. He always has a reason that to him is justification. My cat eats mice. Does that make him bad? I don't think so, and the cat doesn't think so, but I would bet the mice have a different opinion.
Terry GoodkindTo the right person, the person who is truly born to it, duty is a form of love, through which all is possible. Duty is not always a denial of things, but an expansion of them to others. Duty is not always a chore, but is best carried out with love.
Terry Goodkind